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AD7732BRUZ-REEL7 Folha de dados(PDF) 2 Page - Analog Devices |
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AD7732BRUZ-REEL7 Folha de dados(HTML) 2 Page - Analog Devices |
2 / 32 page AD7732 Rev. A | Page 2 of 32 TABLE OF CONTENTS AD7732—Specifications.................................................................. 3 Timing Specifications....................................................................... 6 Absolute Maximum Ratings............................................................ 8 Typical Performance Characteristics ............................................. 9 Output Noise and Resolution Specification................................ 10 Chopping Enabled...................................................................... 10 Chopping Disabled..................................................................... 11 Pin Configurations and Functional Descriptions ...................... 12 Register Description....................................................................... 14 Register Access............................................................................ 15 Communications Register......................................................... 15 I/O Port Register......................................................................... 16 Revision Register ........................................................................ 16 Test Register ................................................................................ 16 ADC Status Register................................................................... 17 Checksum Register..................................................................... 17 ADC Zero-Scale Calibration Register ..................................... 17 ADC Full-Scale Register............................................................ 17 Channel Data Registers.............................................................. 17 Channel Zero-Scale Calibration Registers .............................. 18 Channel Full-Scale Calibration Registers................................ 18 Channel Status Registers ........................................................... 18 Channel Setup Registers ............................................................ 19 Channel Conversion Time Registers ....................................... 19 Mode Register ............................................................................. 20 Digital Interface Description ........................................................ 22 Hardware ..................................................................................... 22 Reset ............................................................................................. 23 Access the AD7732 Registers.................................................... 23 Single Conversion and Reading Data ...................................... 23 Dump Mode................................................................................ 24 Continuous Conversion Mode ................................................. 24 Continuous Read (Continuous Conversion) Mode .............. 25 Circuit Description......................................................................... 26 Analog Front End....................................................................... 26 Analog Input’s Extended Voltage Range ................................. 27 Chopping ..................................................................................... 27 Multiplexer, Conversion, and Data Output Timing ............. 28 Sigma-Delta ADC ...................................................................... 28 Frequency Response .................................................................. 28 Voltage Reference Inputs........................................................... 29 Reference Detect......................................................................... 29 I/O Port........................................................................................ 30 Calibration................................................................................... 30 ADC Zero-Scale Self-Calibration ............................................ 30 Per Channel System Calibration .............................................. 30 High Common-Mode Voltage Application ............................ 31 Outline Dimensions ....................................................................... 32 Ordering Guide .......................................................................... 32 REVISION HISTORY 6/11—Rev. 0 to Rev. A Changes to ADC Performance Chopping Enabled, Offset Error (Unipolar, Bipolar) Parameter, Offset Drift vs. Temperature Parameter, Positive Full-Scale Drift vs. Temp. Parameter, and Channel-to-Channel Isolation Parameter in Table 1................... 3 Change to ADC Performance Chopping Disabled, Channel-to- Channel Isolation Parameter in Table 1 ........................................ 3 Changes to Figure 22...................................................................... 25 Changes to Ordering Guide .......................................................... 32 2/03—Revision 0: Initial Version |
Nº de peça semelhante - AD7732BRUZ-REEL7 |
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Descrição semelhante - AD7732BRUZ-REEL7 |
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